Process for the production of color television picture tubes

Details Process for the production of color television picture tubes Process for the production of color television picture tubes

1977-02-23

1978-10-31

Smith, John D.

Coating processes

Electrical product produced

Fluorescent or phosphorescent base coating

96 361, 427 64, 427 69, 427123, 427226, 427385A, H01J 3120, C03C 1732, C03C 1730

Patent

active

041235630

ABSTRACT:
In a process for the production of color television picture tubes which comprises at least the step of forming a phosphor layer on the inner surface of a panel, the step of coating said inner surface of the panel including said phosphor layer with an aqueous emulsion of a water-insoluble film-forming resin to form a volatilizable substrate layer, the step of forming a metal film on the substrate layer and the step of volatilizing the organic substances, a color television picture tube in which the blister or separation of the metal film can be prevented in said volatilization step and the undecomposed resin does not remain and which has an improved brightness can be produced by forming said substrate layer from at least two layers each of an emulsion, adding colloidal silica, an aqueous ammonium oxalate solution and aqueous hydrogen peroxide to the first layer emulsion, and adding polyvinyl alcohol-boric acid complex and a small amount of ammonium hydroxide to the emulsion of the layer contacting directly with said metal film.

REFERENCES:
patent: 3317337 (1967-05-01), Saulnier
patent: 3582390 (1971-06-01), Saulnier
patent: 3821009 (1974-06-01), Lerner et al.

Affiliated with

Also associated with

Rating

Process for the production of color television picture tubes does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for the production of color television picture tubes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the production of color television picture tubes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1835777